PCI: Bounds-check command-line resource alignment requests

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32-bit BARs are limited to 2GB size (2^31).  By extension, I assume 64-bit
BARs are limited to 2^63 bytes.  Limit the alignment requested by the
"pci=resource_alignment=" command-line parameter to 2^63.

Link: https://lore.kernel.org/r/20201007123045.GS4282@kadam
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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Bjorn Helgaas 2020-11-05 14:51:36 -06:00

parent 2f0cd59c6f

commit 6534aac198

1 changed files with 8 additions and 6 deletions

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drivers/pci/pci.c

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